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Finding the Fourth Proportional to 199,764.40, 299,760.21 and 73,388.41

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Solution

The fourth proportional to 199,764.40, 299,760.21 and 73,388.41 is: 110,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,764.40 : 299,760.21 = 73,388.41 : x
  2. Step 2: Convert to fraction form
    199,764.40/299,760.21 = 73,388.41/x
  3. Step 3: Cross multiply
    199,764.40x = 299,760.21 × 73,388.41
  4. Step 4: Simplify right side
    199,764.40x = 21,998,925,193.17
  5. Step 5: Solve for x
    x = 21,998,925,193.17/199,764.40
  6. Step 6: Final answer
    x = 110,124.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.